An agent could say, ..."Regretfully, I can't do that. My Broker
won't let me." An agent with a bit more backbone might say,
"I wish I could afford to give bonuses away. Can you afford to give
your bonuses away?"
Prudential Indiana Realty Group
If your buyer client is requesting that you (and your Broker) not receive a bonus for assisting them with purchasing a property that offers a bonus then I would question them as to why they are saying that. Was my service to them unsatisfactory? Was there something I did that they felt wasn't in their best interests? Is this home really a property they can picture themselves living in and be happy with? I would think that some type of trusting relationship should have been established so they wouldn't take this stance. I would also point out that they are receiving this bonus too which could assist them with their closing costs.
Ultimately, if the buyers were adamant about their agent not receiving the bonus then I would offer it to them to show them my willingness of working in their best interests and possibly be their "go to" agent in the future.
Prudential Connecticut Realty
If you are not establishing the fee for your service with your buyer clients up front, before a house is chosen, you leave yourself open to potential problems and disagreements.
Generally speaking, incentives that steer you to "selling a house TO your buyer client" are inappropriate incentives, and impose a conflict of interest, since your interest should lie in which house is best for your client, the buyer.